Creates histogram data. More...

#include <VisualHistogram.h>

Classes
struct	PixelColorHistogramValue
	Data value of a histogram of PixelColor values. More...
Public Types
typedef std::vector < PixelColorHistogramValue >	PixelColorHistogram
	Vector of histogram values.
typedef PixelColorHistogram::iterator	PixelColorHistogramIterator
	The PixelColorHistogramIterator is an iterator of the PixelColorHistogram.
Static Public Member Functions
static PixelColorHistogram	createHistogramOfRGBPixels (std::vector< PixelColor > &inputValues)
	Creates a histogram of ARGB PixelColor values.
Private Member Functions
	VisualHistogram ()
	The constructor.
	~VisualHistogram ()
	The destructor.
Static Private Member Functions
static void	initCentroids (const std::vector< PixelColor > &inputValues, const uint32 requestedNumberOfCentroids, std::vector< PixelColor > &centroids)
	Initializes the centroids of the histogram.
static VisualHistogram::PixelColorHistogram	thresholdPass (PixelColorHistogram &inputValues)
	Normalizes PixelColor values by merging similar ones.

Detailed Description

Creates histogram data.

Member Typedef Documentation

Vector of histogram values.

The PixelColorHistogramIterator is an iterator of the PixelColorHistogram.

VizKit::VisualHistogram::VisualHistogram ( ) [private]

The constructor.

VisualHistogram is a collection of static methods. Class does not need any instances. Constructor is private and not implemented.

VizKit::VisualHistogram::~VisualHistogram ( ) [private]

The destructor.

VisualHistogram is a collection of static methods. Class does not need any instances. Destructor is private and not implemented.

VisualHistogram::PixelColorHistogram VisualHistogram::createHistogramOfRGBPixels ( std::vector< PixelColor > & inputValues ) [static]

Creates a histogram of ARGB PixelColor values.

Parameters:

inputValues Array of PixelColor values.

Remarks:: The inputValues are sorted inside this function. The histogram values are calculated with the k-means algorithm. Alpha value of PixelColor is not considered in this function (alpha has to be premultiplied before calling this function).

void VisualHistogram::initCentroids	(	const std::vector< PixelColor > &	inputValues,
		const uint32	requestedNumberOfCentroids,
		std::vector< PixelColor > &	centroids
	)		`[static, private]`

Initializes the centroids of the histogram.

Parameters:

	inputValues	The input values.
	requestedNumberOfCentroids	The requested number of centroids.
[out]	centroids	The centroid values. The number of centroids can be lower than the requested number of centroids.

VisualHistogram::PixelColorHistogram VisualHistogram::thresholdPass ( PixelColorHistogram & inputValues ) [static, private]

Normalizes PixelColor values by merging similar ones.

Parameters:

inputValues The histogram input values.

The documentation for this class was generated from the following files: